Apparatus for treating fibrous material.



W. P. STRAW.

APPARATUS FOR TREATING PIBROUS MATERIAL.

APPLICATION FILED MAY 13, 1912.

1,117,721. Patented Nov. 17, 1914.

U0 U I 10 7) G '10 v v V F "x 7 I %f x x UNITED STATES WILLIAM PARKER STBA'W, OF MANCHESTER, NEW HAMPSHIRE.

APPARATUS FOR- TREATING FIBROUS MATERIAL.

Application filed May 13, 1912.

1 b all whom it may concern Be it known that I, lVILLIAM PARKER S'rnaw, a citizen of the United States, and resident of Manchester, county of Hillsboro, State of New Hampshire, have in vented an Improvement in Apparatus for Treating Fibrous Material, of which the following description, in connection with the accompanying drawing, is a specification. like characters on the drawing representing like parts.

This invention relates to apparatus for treating slivers, such, for instance, as a drawing frame, wherein a group of slivers drawn from a number of roving cans is acted upon and delivered at the front of the frame, two or more of the slivers taken from the roving cans being drawn into and delivered as a single sliver, the head having one or more deliveries. Each head is thus fed with slivers from a group of roving cans located back of the head, and manit'estly while the slivers from the cans nearest the head will lead very directly upward to the sliver-separating means and stop-motion spoons at the back of the frame the slivers from more remote cans must travel forward in inclined paths. The roving in a full can is almost always piled above the top of the can, and the full or partially full cans are pushed frontward toward the frame as empty cans adjacent thereto are removed, so that very often a sliver will draw across the mass of roving at the top of a can in front, tending to tangle, strain or break such sliver and requiring great vigilance on the part of the attendant.

In United States Patent No. 990,678 granted April 25, 1911 to E. S. Stratton an improved method of feeding drawing frames is disclosed, a guideway at the back of each head being arranged to position a plurality of rows of roving cans, two or more abreast. its the cans nearest the frame are emptied and removed the group of cans is pushed forward in the guideway, and full cans are set in place at the outer end of the group, the slivers therefrom being led to the adjacent head. This mode of grouping the feed cans for a drawing frame is of great advantage, as it facilitates handling and attendance, and avoids crowding at the back of the frame, but it does not obviate breakage or straining of slivers when drawn over the Specification of Letters Patent.

Patented Nov. 17, 1914.

Serial No. 696,820.

mass of roving projecting above the top of a full can.

This invention has for its object the production of simple and eliicient means for guiding and directing the slivers as they pass from the roving cans to the drawing rolls of a head so that any or all of the slivers from the cans of a group (except from the cans nearest the head) may be led primarily in an upward direction from the cans, and then forward to the head at a considerable distance above the tops of cans in front. The sliver guiding means is so constructed that the attendant may at will and instantly place the sliver from any given can under the control of such means, or remove from such control, as may be best adapted for changing conditions, and herein the guiding means is shown as arranged for use in connection with the manner of grouping feed cans set forth in the patent referred to. The invention, however, is not restricted to that particular form of grouping, as will appear hereinafter.

Figure l t part diagrammatic and top plan view of a suflicient portion of a drawing frame head, and showing the group of roving cans for feeding the head, with one embodiment of the present invention illustrated adjacent the head, to cooperate with slivers from the appurtenant groups of cans, a six delivery head being shown; Fig. 2 an enlarged view in transverse section through the drawing frame, on the line Fig. 1. showing one of the fixed supports extended rearward from a head of the frame and with the sliver-guiding means on the support; Fig. 3 is a view in front elevation of a pair of oppositely extended sliver guides, the support being shown in cross-section.

In Figs. 1 and 2 the portion of a drawing frame illustrated is of any well known construction, a six delivery head being shown in Fig. i, the several deliveries being indicated at A, the receiving cans for the slivers being indicated at i it being understood that the cover plate E extends from the end of the frame above the set of rolls, as F, Fig. 2. of each delivery.

Herein immaterial and usual parts of the drawing frame forming no part of this invention have been omitted, but it will be understood that at the back of the frame,be-"- hind each delivery of the head, a series of stop-motion spoons, as G, and sliver guidefingers H, Fig. 2, will be provided, supported in usual manner on the plate I at the back of the sets of drawing rolls F.

Referring to Fig. 1 the apparatus is shown as arranged to take the slivers from 12 roving cans J, to each pair of deliveries A and to deliver two slivers to a pair of the cans D which latter in practice are provided with any suitable coiler mechanism. Behind each pair of deliveries, as herein shown, the feeder cans J are arranged in a plurality of rows, six rows being shown in Fig. 1, and herein each row is shown as containing two cans abreast, this arrangement being such as is shown in the patent to Stratton, above mentioned, and to facilitate the proper positioning of each group of cans J the floor is provided with three guideways A B C, Fig. 1, one guideway for each pair of deliveries, as in the Stratton patent. It will be noted that the guideways A and C are not centrally located with respect to the adjacent pairs of deliveries, the arrangement shown serving to leave a conveniently wide space or alley between each group of feeder cans J. With such a grouping it will be obvious that the slivers from the leading cans, .as 1, of each group, can lead directly upward between the guide-fingers H to the spoons G and thence to the drawing rolls, but the greater the distance of a pair of cans from the back of the frame the greater is the probability that the slivers leading there from will drag over the tops of cans in front,

and catch upon such cans or upon the piled up sliver therein, causing the sliver to break back, as it is termed. This is due to the fact that full cans are set into the group at the rear end of a guideway as the front cans are removed when empty, the whole group being. then pushed forward one step.

The full cans have the sliver piled up a considerable distance above the can top, and theoretically each pair of cans in a group, beginning with the front pair 1, should have less sliver in them than the next pair back, and so on, until the last pair, 6, should be so. full that the sliver is piled above the tops. In practice, however, many of the cans may have the sliver piled up, and if the sliver from a can, or cans, behind draws across such piled up mass the sliver is very apt to be broken or tangled.

Very often, when the drawing frame pulls the sliver in a direction too nearly horizontal, the sliver will not leave the full can cleanly, but it will tangle and pull several coils from the top of the can, which is very objectionable. To prevent this faulty action means has been provided herein to direct and guide temporarily such slivers as might tend otherwise to engage or contact with the sliver in other cans ahead. To this end the plate I behind each pair of deliveries is provided with a rigid tubular bearing 7 which receives a rearwardly extended, and substantially horizontal, elongated support or bar 8 fixed at its rear end in the end of an upright post 9, Fig. 1, secured to the floor. Each support overhangs the group of feeder ans J appurtenant to that particular pair of deliveries, as shown in Fig. 1, collars 10 on the support 8 adjacent the bearing 7 serving to maintain the support in fixed position therein. As each set of guide-fingers H is symmetrical with relation to the corresponding delivery each of the several bearings 7 is positioned properly with relation to the adjacent set of fingers, the posts 9 being shown in Fig. 1 central relative to' the groups of cans 5. At intervals along each support temporary sliver-guides are provided, each guide being herein shown as two lateral, oppositely extended open hook-line members 11, connected by a hub 12 fitting the bar 8 and held fixed thereon in any suitable man ner, as by a set screw 13, Figs. 2 and 3. These guides are made of metal and preferably are covered with porcelain or enamel to present a perfectly smooth and polished surface, each guide being located transverse to the common support 8 and presenting a concave seat for the sliver.

Now, if it is found that some particular sliver will drag over the piled up sliver in a can ahead of it, the attendant lifts such sliver onto someone of the guides 11 best situated for the purpose, so that the sliver will be led upward from its can and then forward toward the delivery, whereby the sliver so guided cannot come into engagement with the can ahead, or piled up sliver in such a can.

Referring to Fig. 1, the sliver from the front can 1 leads directly upward to the guide fingers, but the slivers from cans 2 and are shown as led upward to the overhead guides 11 nearest thereto, and said slivers lead thence over the guides to the proper delivery.

In Fig. 1 none of the slivers are indicated for the two deliveries at the left, but for the middle pair of deliveries one sliver, as s, is shown as carried directly from the rearmost can of the group J to thefrontguide 11 merely to show how the guides may be used- Referring to the right hand pair of deliveries, however, it will be seen that the slivers. (indicated by full lines and and 6. Thus, if all the guides are brought into use the last pair will support and guide only one pair of slivers, while the front guides will sustain five pairs of slivers, the latter traveling forward side by side over the guides, and being separated by the fingers H and stopmotion spoons G before they reach the rolls.

At any time the attendant can throw the sliver from a guide should the aid of the latter become unnecessary, or the guides can be permitted to control the slivers until the cans are pushed forward to such a point that the guide would hinder the free travel of the sliver.

Inasmuch as the guides 11 are for the purpose of directing a sliver upward from its own can, or above and out of the way of an obstacle presented by another can in front, it will be clearly understood from the foregoing description that the guiding means can be used in a great variety of ways. according to circumstances. The attendant will manipulate the slivers, by the aid of the guiding means, in such manner as will best secure the desired results, using any or all of theguides for each group as may be necessary or desirable, it being understood that the guides may remain in control of the slivers a longer or a shorter time.

So far as my invention is concerned it is immaterial whether the head has a single delivery or a plurality of deliveries, for in any event the slivers for a delivery are drawn from a group of cans behind the head, and the sliver guiding means will be arranged to direct and control the slivers leading to a delivery from a group of feeding cans.

When the head has a plurality of deliveries they are generally arranged in pairs, as shown in Fig. 1, with the sliver guiding means cooperating with the slivers leading to a pair of deliveries.

Having fully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination with a sliver-treating apparatus having a head, and laterally separated guideways at the back of the apparatus leading to the deliveries of the head, each adapted to accommodate a plurality of rows of roving cans two or more abreast while the slivers are drawn therefrom, of substantially horizontal supports extended rearward from the head adjacent the deliveries and overhanging the groups of cans in the guideways, and a series of U-shaped temporary sliver-guides on each support, to direct the sliver primarily in an upward direction from the mouth of any can in a group and prevent such directed sliver from tangling, drawing over or catching upon the mass of sliver in a can nearer the head, each sliver guide being adapted to support a single sliver or a plurality of slivers side by side as they travel toward the head.

2. The combination with a drawing frame having a delivery head, and means at the back of the head to guide and position a plurality of rows of roving cans two or more abreast while the slivers are led therefrom to the deliveries of the head, of a rigidly sustained and substantially horizontal support extended rearward from each pair of deliveries and overhanging the group of cans appurtenant thereto, and a series of laterally extended, open U-shaped sliver guides extended from opposite sides of each support, adapted to cooperate with and lead in an upward and then forward direction the slivers from the rearward cans in the group, to prevent such directed slivers from drawing or dragging across and engaging the mass of sliver in full cans nearer the head, the guides being adapted to change the direction of single slivers and also to support a plurality of slivers side by side as they travel to the head.

3. The combination, with a drawing frame having a delivery head, of a rigidly sustained bar extended substantially horizontally rearward from each pair of deliveries of the head above the group of cans from which slivers are led to the head, and pairs of oppositely extended, lateral and open U-shaped guides attached at intervals to each bar and projecting from opposite sides thereof, whereby slivers from full cans of a group may be led upward to said guides and thence frontward to the adjacent delivery, to prevent the sliver from any can pulling over the mass of roving at the top of another full can in front, any guide serving to change the direction of a sliver and at the same time supporting one or more additional slivers leading from other guides.

4:. The combination, with a drawing frame having a delivery head, and means to position a group of roving cans behind each delivery, the slivers from the cans of a group being led to the adjacent delivery, of fixedly positioned sliver guides arranged in pairs at the back of each pair of deliveries and above the group of appurtenant cans, each guide adapted to direct the sliver from any desired can primarily in an upward direc tion and then frontward to the head, and also to support simultaneously one or more slivers leading to the head, whereby the piled up roving in a full can is prevented from catching and breaking the sliver leading from another can in the group.

5. The combination, with a drawing frame having a delivery head, fed from a group of roving cans behind the delivery, the slivers from the cans being led to the delivery of the head, of fixedly positioned means extended rearward from the delivery,

- also to sustain another sliver traveling to the delivery from a separate guide.

6. The combination with a drawing frame having a delivery head, and means to posi tion a group of roving cans behind each delivery, the slivers from the cans of a group being led to the adjacent delivery, of a fixedly positioned rod at the back of each pair of deliveries and above the group of appurtenant cans, guides secured to said rods at intervals and extending laterally thereof, whereby the slivers from any desired can may be primarily led upward to any one of said guides forward thereof and thence frontward to the adjacent delivery, to prevent the slivers from any can pulling over the mass of roving at the top of another can in front.

7. The combination With a drawing frame, having a delivery head, and means to position a group of roving cans behind each delivery, the slivers from the cans of a group being led to the adjacent delivery, of a fixedly positioned rod at the back of each pair of deliveries and above the group of appurtenant cans, guides adjustably secured l VILLIAl i PARKER STRAW.

Witnesses EDW'ARD B. WOODBURY, JOHN 1V. RowLnY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Batents.

Washington, D. 0. 

